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Finding the Fourth Proportional to 348,538.60, 523,326.30 and 269,741.80

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Solution

The fourth proportional to 348,538.60, 523,326.30 and 269,741.80 is: 405,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,538.60 : 523,326.30 = 269,741.80 : x
  2. Step 2: Convert to fraction form
    348,538.60/523,326.30 = 269,741.80/x
  3. Step 3: Cross multiply
    348,538.60x = 523,326.30 × 269,741.80
  4. Step 4: Simplify right side
    348,538.60x = 141,162,978,149.34
  5. Step 5: Solve for x
    x = 141,162,978,149.34/348,538.60
  6. Step 6: Final answer
    x = 405,013.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.